/*
 * Copyright (c) 2008, Matthias Mann
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 *     * Redistributions of source code must retain the above copyright notice,
 *       this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of Matthias Mann nor the names of its
 *       contributors may be used to endorse or promote products derived from
 *       this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
package nginx.clojure;

/**
 * <p>An exception used to initiate the control transfer.</p>
 * <p>It does not support stack traces.</p>
 * 
 * <p>Methods which are declared to throw this exception are "suspendable". This
 * exception must always be propagated and never be caught.</p>
 * 
 * <p>Generic try/catch handlers are allowed:<br/>
 * {@code try{ doSomething(); } catch(Throwable ex) { handleException(ex); } }</p>
 * 
 * <p>The instrumentation ANT task will enhance the bytecode of these methods to
 * support suspension and continuation of their execution.</p>
 * 
 * @author Matthias Mann
 */
public final class SuspendExecution extends RuntimeException {

	private static final long serialVersionUID = 1L;

	static final SuspendExecution instance = new SuspendExecution();
    
    private SuspendExecution() {
    }

    @Override
    public Throwable fillInStackTrace() {
        return this;
    }

}
